<!--
   Copyright 2024 The Google Research Authors.
  
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
  
       http://www.apache.org/licenses/LICENSE-2.0
  
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
-->

<!DOCTYPE html>
<html>
  <head>
    <meta charset=utf-8>
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
    <title>BlockMERF Viewer</title>
<style>
body {
  font-family: Helvetica, "Helvetica Neue", sans-serif;
  font-size: 18px;
  background: #FFF;
  padding: 9px 6px 0px 5px; /* Picked to get an even nice resolution on iPhone 15 Pro */
  margin: 0;
  text-align: center;
}

#error {
  display: none;
  position: fixed;
  top: 20px; left: 20px; right: 20px; bottom: 20px;
  background: #444;
  padding: 8px;
  white-space: pre;
  color: #fff;
  font-family: monospace;
  font-weight: bold;
}

#image-progress {
  background: #000;
  color: #FFF;
  opacity: 0.75;
  padding: 5px;
}

#Loading {
  position: absolute;
  top: 12px;
  left: 90px;
}

#Loading h4 {
  margin: 0px;
}

#loading-container {
  width: 150px;
  height: 150px;
  padding: 0px;
  margin: -40px 0 0 -40px;
  position: absolute;
  top: 50%;
  left: 50%;
}

.loading-bgbox {
  position: absolute;
  width: 65px;
  height: 65px;
  background-color: #DDD;
  width: 65px;
  height: 65px;
}

#topleft {
  top: 5px;
  left: 5px;
}

#bottomleft {
  bottom: 5px;
  left: 5px;
}

#topright {
  top: 5px;
  right: 5px;
}

#bottomright {
  bottom: 5px;
  right: 5px;
}

#loading-indicator {
  position: absolute;
  top: 5px;
  left: 5px;
  width: 65px;
  height: 65px;
  background-color: #999;
  animation-name: indicator;
  animation-duration: 5s;
  animation-iteration-count: infinite;
}

@keyframes indicator {
  0%   {top: 5px; left: 5px; }
  25%  {top: 5px; left: 80px; }
  50%  {top: 80px; left: 80px; }
  75%  {top: 80px; left: 5px; }
}

#viewspacecontainer {
  position: relative;
  text-align: center;
  display: none;
  border: 2px solid #000;
}

/* The main MERF view */
.view {
  margin: auto;
  overflow: hidden;
  transform-origin: top left;
  background: #fff;
}

#benchmark-stats {
  position: absolute;
  top: 0px;
  right: 0px;
  display: none;
}

#shader-editor {
  display: block;
  margin-top: 10px;
  margin-left: auto;
  margin-right: auto;
}

</style>
</head>
<body>

<div id=error></div>

<!-- main content-->
<div id="viewspacecontainer">
  <div id="Loading">
    <h4>
    <span id="image-progress">Loading images: 0/?</span>
    </h4>
  </div>
  <textarea readonly id="benchmark-stats" rows="40" cols="40">
Click me to start benchmarking when the frame-rate is behaving reasonably.
  </textarea>
  <div id="loading-container">
    <div id="topleft" class="loading-bgbox"></div>
    <div id="bottomleft" class="loading-bgbox"></div>
    <div id="topright" class="loading-bgbox"></div>
    <div id="bottomright" class="loading-bgbox"></div>
    <div id="loading-indicator"></div>
  </div>
  <div class=viewspace id="viewspace"></div>
</div>

<!-- shader editor -->
<textarea id="shader-editor" rows="50" cols="200"></textarea>

<!-- third party -->
<script src="https://unpkg.com/three@0.113.1/build/three.js"></script>
<script src="https://unpkg.com/three@0.113.1/examples/js/controls/OrbitControls.js"></script>
<script src="https://unpkg.com/three@0.113.1/examples/js/controls/PointerLockControls.js"></script>
<!-- <script src="https://unpkg.com/png-js@1.0.0/zlib.js"></script> -->
<!-- <script src="https://unpkg.com/png-js@1.0.0/png.js"></script> -->
<script src="https://unpkg.com/stats-js@1.0.1/build/stats.min.js"></script>
<script src="https://unpkg.com/file-saver@2.0.0-rc.2/dist/FileSaver.min.js"></script>

<!-- Use if you've downloaded these scripts locally. -->
<!-- <script src="third_party/three.js"></script> -->
<!-- <script src="third_party/OrbitControls.js"></script> -->
<!-- <script src="third_party/PointerLockControls.js"></script> -->
<script src="third_party/zlib.js"></script>
<script src="third_party/png.js"></script>
<!-- <script src="third_party/stats.min.js"></script> -->

<!-- own code-->
<script src="scene_spec.js"></script>
<script src="fetch_asset.js"></script>
<script src="create_texture.js"></script>
<script src="prepare_payload.js"></script>
<script src="populate_texture.js"></script>
<script src="texture_manager.js"></script>
<script src="worker_pool.js"></script>
<script src="globals.js"></script>
<script src="utils.js"></script>
<script src="progressive.js"></script>
<script src="viewdependency.js"></script>
<script src="defaultposes.js"></script>
<script src="input.js"></script>
<script src="benchmark.js"></script>
<script src="index.js"></script>
</body>
</html>
